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S32750 Stainless Steel vs. ACI-ASTM CB6 Steel

Both S32750 stainless steel and ACI-ASTM CB6 steel are iron alloys. They have 85% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S32750 stainless steel and the bottom bar is ACI-ASTM CB6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 17
18
Fatigue Strength, MPa 360
410
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 860
880
Tensile Strength: Yield (Proof), MPa 590
660

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
870
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 21
12
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
2.5
Embodied Energy, MJ/kg 56
36
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 43
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
150
Resilience: Unit (Modulus of Resilience), kJ/m3 860
1110
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
32
Strength to Weight: Bending, points 26
26
Thermal Diffusivity, mm2/s 4.0
4.6
Thermal Shock Resistance, points 25
31

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 24 to 26
15.5 to 17.5
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 58.1 to 66.8
74.4 to 81
Manganese (Mn), % 0 to 1.2
0 to 1.0
Molybdenum (Mo), % 3.0 to 5.0
0 to 0.5
Nickel (Ni), % 6.0 to 8.0
3.5 to 5.5
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030